My mantra is always be prepared. Get ready for VMware vCloud implementation today!

In addition, if you’ll think about it – it’s the most reasonable thing to do. If you’ll have a problem with your main cluster , would you like the entire management servers including the vCenter (!) to be affected ?

I recommend to separate your management servers into different cluster , including creating a different storage group for this purpose.

We wanted to enable VMware EVC on our cluster (cluster 1) but we couldn’t enable the EVC , because in order to be able to enable EVC – all virtual machines must be powered off , and our vCenter server as a virtual machine, was standing in our way.

Solution

Take one ESX server from cluster 1 and insert it into maintenance mode.

Remove ESX server from cluster 1 .

Create a new cluster (cluster 2)

Add the ESX server which you have just removed from cluster 1 to cluster 2 (make sure not to change anything in the storage configuration in that ESX server – the ESX server has access to the old cluster LUNs)

Use Live migration (vMotion) in order to migrate vCenter server from cluster 1 to cluster 2